The most popular addon for Firefox and Chrome, it's the Adblock Plus που blocks ads by websites που επισκέπτεται ο χρήστης, αλλά απαιτεί πόρους από το system.
The Adblock Plus is the reason why Firefox and Chrome bind large amounts of system RAM while consume resources from the processor, resulting in the delay of the system (especially on older PCs) making websurfing a bit slower.
Adblock Plus has become quite a lot good blocking ads and many iFrames, but with sites filled with share buttons, it now has more work. This has the result of sequestering several MB more (it can reach up to 300MB extra) for its operation, while it can reach an extra 2GB (!) if a site is "heavy" with ads and iFrames.
There is no solution to replace Adblock Plus, however Flashblock and NoScript they can succeed well Results, with less consumption of "precious" MegaBytes.
Adblock Plus: Firefox - Chrome
Source: e-pcmag.gr